名词
中文翻译：Unknown
同义词：
['sharp', 'keen', 'keen edge', 'sharp blade']
例句：
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1. She sharpened her knife to make it more precise.
她磨利了她的刀，使其更精确。
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2. The chef used a sharpie to draw the design on the pizza.
厨师用尖锐的笔在披萨上画设计。
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3. The sharpie pen was perfect for writing on the blackboard.
这种尖锐的笔非常适合在黑板上写字。